From 19aab073245923e8b8b4876dbc2d0287e9e9f700 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 13 Oct 2015 17:47:35 -0700 Subject: [PATCH] staging: comedi: cb_pcidas: use comedi_range_is_unipolar() Instead of relying on the IS_UNIPOLAR mask value, use the comedi helper function to check if the range is unipolar. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/cb_pcidas.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c index f5db76c50f5e..5757dacec094 100644 --- a/drivers/staging/comedi/drivers/cb_pcidas.c +++ b/drivers/staging/comedi/drivers/cb_pcidas.c @@ -171,8 +171,6 @@ static inline unsigned int DAC_CHAN_EN(unsigned int channel) #define PCIDAS_AO_FIFO_REG 0x00 #define PCIDAS_AO_FIFO_CLR_REG 0x02 -#define IS_UNIPOLAR 0x4 /* unipolar range mask */ - /* analog input ranges for most boards */ static const struct comedi_lrange cb_pcidas_ranges = { 8, { @@ -371,7 +369,7 @@ static int cb_pcidas_ai_rinsn(struct comedi_device *dev, /* set mux limits and gain */ bits = BEGIN_SCAN(chan) | END_SCAN(chan) | GAIN_BITS(range); /* set unipolar/bipolar */ - if (range & IS_UNIPOLAR) + if (comedi_range_is_unipolar(s, range)) bits |= UNIP; /* set single-ended/differential */ if (aref != AREF_DIFF) @@ -857,6 +855,7 @@ static int cb_pcidas_ai_cmd(struct comedi_device *dev, struct cb_pcidas_private *devpriv = dev->private; struct comedi_async *async = s->async; struct comedi_cmd *cmd = &async->cmd; + unsigned int range0 = CR_RANGE(cmd->chanlist[0]); unsigned int bits; unsigned long flags; @@ -870,9 +869,9 @@ static int cb_pcidas_ai_cmd(struct comedi_device *dev, /* set mux limits, gain and pacer source */ bits = BEGIN_SCAN(CR_CHAN(cmd->chanlist[0])) | END_SCAN(CR_CHAN(cmd->chanlist[cmd->chanlist_len - 1])) | - GAIN_BITS(CR_RANGE(cmd->chanlist[0])); + GAIN_BITS(range0); /* set unipolar/bipolar */ - if (CR_RANGE(cmd->chanlist[0]) & IS_UNIPOLAR) + if (comedi_range_is_unipolar(s, range0)) bits |= UNIP; /* set singleended/differential */ if (CR_AREF(cmd->chanlist[0]) != AREF_DIFF) -- 2.30.2